Vulnerability Scan Result

Target:

http://cloud.mail.ru/ (redirect)

Scanned target: https://cloud.mail.ru/

Submitted: April 13, 2025 from MM

Public scan

Scan mode: Passive (non-intrusive)

Summary

medium

Info

Low

Medium

High

Critical

Screenshot

Title:	Облако Mail - Бесплатное облачное хранилище для передачи и хранения данных онлайн
Description:	Память для всех ваших фото, видео и тёплых воспоминаний

IP Information

IP address	95.163.57.16
Country	RU
AS number	AS47764
Net name	LLC VK

Open Ports

80/tcp	http	nginx -
443/tcp	https	nginx -

Web Technologies

Software / Version	Category
Babel	Miscellaneous
Axios	JavaScript libraries
core-js 2.6.12	JavaScript libraries
Google Analytics GA4	Analytics
jQuery 1.9.1	JavaScript libraries
Nginx	Web servers, Reverse proxies
Open Graph	Miscellaneous
Preact	JavaScript libraries
Swiper	JavaScript libraries
PWA	Miscellaneous
Consent Manager	Cookie compliance
Google Tag Manager	Tag managers
HSTS	Security

Web Application Vulnerabilities

Evidence

URL	Cookie Name	Evidence
https://cloud.mail.ru/	oid	The server responded with Set-Cookie header(s) that does not specify the HttpOnly flag: Set-Cookie: oid=5xJi6GEfuoKFVff4HtMp4

Vulnerability description

We found that a cookie has been set without the HttpOnly flag, which means it can be accessed by potentially malicious JavaScript code running inside the web page. The root cause for this usually revolves around misconfigurations in the code or server settings.

Risk description

The risk is that an attacker who injects malicious JavaScript code on the page (e.g. by using an XSS attack) can access the cookie and can send it to another site. In case of a session cookie, this could lead to session hijacking.

Recommendation

Ensure that the HttpOnly flag is set for all cookies.

Classification

CWE	CWE-1004
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL	Cookie Name	Evidence
https://cloud.mail.ru/	oid	Set-Cookie: oid=5xJi6GEfuoKFVff4HtMp4

Vulnerability description

We found that a cookie has been set without the Secure flag, which means the browser will send it over an unencrypted channel (plain HTTP) if such a request is made. The root cause for this usually revolves around misconfigurations in the code or server settings.

Risk description

The risk exists that an attacker will intercept the clear-text communication between the browser and the server and he will steal the cookie of the user. If this is a session cookie, the attacker could gain unauthorized access to the victim's web session.

Recommendation

Whenever a cookie contains sensitive information or is a session token, then it should always be passed using an encrypted channel. Ensure that the secure flag is set for cookies containing such sensitive information.

Classification

CWE	CWE-614
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

CVSS	CVE	Summary	Affected software
4.3	CVE-2015-9251	jQuery before 3.0.0 is vulnerable to Cross-site Scripting (XSS) attacks when a cross-domain Ajax request is performed without the dataType option, causing text/javascript responses to be executed.	jquery 1.9.1
4.3	CVE-2019-11358	jQuery before 3.4.0, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.	jquery 1.9.1
4.3	CVE-2020-11023	In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.	jquery 1.9.1
4.3	CVE-2020-11022	In jQuery versions greater than or equal to 1.2 and before 3.5.0, passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.	jquery 1.9.1

Vulnerability description

We noticed known vulnerabilities in the target application based on the server responses. They are usually related to outdated systems and expose the affected applications to the risk of unauthorized access to confidential data and possibly denial of service attacks. Depending on the system distribution the affected software can be patched but displays the same version, requiring manual checking.

Risk description

The risk is that an attacker could search for an appropriate exploit (or create one himself) for any of these vulnerabilities and use it to attack the system.

Recommendation

In order to eliminate the risk of these vulnerabilities, we recommend you check the installed software version and upgrade to the latest version.

Classification

CWE	CWE-1026
OWASP Top 10 - 2017	A9 - Using Components with Known Vulnerabilities
OWASP Top 10 - 2021	A6 - Vulnerable and Outdated Components

Evidence

URL	Evidence
https://cloud.mail.ru/	Response headers do not include the Referrer-Policy HTTP security header as well as the `<meta/>` tag with name 'referrer' is not present in the response.

Vulnerability description

We noticed that the target application's server responses lack the Referrer-Policy HTTP header, which controls how much referrer information the browser will send with each request originated from the current web application.

Risk description

The risk is that if a user visits a web page (e.g. "http://example.com/pricing/") and clicks on a link from that page going to e.g. "https://www.google.com", the browser will send to Google the full originating URL in the `Referer` header, assuming the Referrer-Policy header is not set. The originating URL could be considered sensitive information and it could be used for user tracking.

Recommendation

The Referrer-Policy header should be configured on the server side to avoid user tracking and inadvertent information leakage. The value `no-referrer` of this header instructs the browser to omit the Referer header entirely.

Classification

CWE	CWE-693
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL	Evidence
https://cloud.mail.ru/	Response does not include the HTTP Content-Security-Policy security header or meta tag

Vulnerability description

We noticed that the target application lacks the Content-Security-Policy (CSP) header in its HTTP responses. The CSP header is a security measure that instructs web browsers to enforce specific security rules, effectively preventing the exploitation of Cross-Site Scripting (XSS) vulnerabilities.

Risk description

The risk is that if the target application is vulnerable to XSS, lack of this header makes it easily exploitable by attackers.

Recommendation

Configure the Content-Security-Header to be sent with each HTTP response in order to apply the specific policies needed by the application.

Classification

CWE	CWE-693
OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

Software / Version	Category
Babel	Miscellaneous
Axios	JavaScript libraries
core-js 2.6.12	JavaScript libraries
Google Analytics GA4	Analytics
jQuery 1.9.1	JavaScript libraries
Nginx	Web servers, Reverse proxies
Open Graph	Miscellaneous
Preact	JavaScript libraries
Swiper	JavaScript libraries
PWA	Miscellaneous
Consent Manager	Cookie compliance
Google Tag Manager	Tag managers
HSTS	Security

Vulnerability description

We noticed that server software and technology details are exposed, potentially aiding attackers in tailoring specific exploits against identified systems and versions.

Risk description

The risk is that an attacker could use this information to mount specific attacks against the identified software type and version.

Recommendation

We recommend you to eliminate the information which permits the identification of software platform, technology, server and operating system: HTTP server headers, HTML meta information, etc.

Classification

OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL
https://cloud.mail.ru/robots.txt

Vulnerability description

We found the robots.txt on the target server. This file instructs web crawlers what URLs and endpoints of the web application they can visit and crawl. Website administrators often misuse this file while attempting to hide some web pages from the users.

Risk description

There is no particular security risk in having a robots.txt file. However, it's important to note that adding endpoints in it should not be considered a security measure, as this file can be directly accessed and read by anyone.

Recommendation

We recommend you to manually review the entries from robots.txt and remove the ones which lead to sensitive locations in the website (ex. administration panels, configuration files, etc).

Classification

OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Evidence

URL
Missing: https://cloud.mail.ru/.well-known/security.txt

Vulnerability description

We have noticed that the server is missing the security.txt file, which is considered a good practice for web security. It provides a standardized way for security researchers and the public to report security vulnerabilities or concerns by outlining the preferred method of contact and reporting procedures.

Risk description

There is no particular risk in not having a security.txt file for your server. However, this file is important because it offers a designated channel for reporting vulnerabilities and security issues.

Recommendation

We recommend you to implement the security.txt file according to the standard, in order to allow researchers or users report any security issues they find, improving the defensive mechanisms of your server.

Classification

OWASP Top 10 - 2017	A6 - Security Misconfiguration
OWASP Top 10 - 2021	A5 - Security Misconfiguration

Infrastructure Vulnerabilities

Evidence

Domain Queried	DNS Record Type	Description	Value
cloud.mail.ru	A	IPv4 address	95.163.57.16
cloud.mail.ru	MX	Mail server	10 emx.mail.ru
cloud.mail.ru	TXT	Text record	"google-site-verification=hYhZUB3YRJmI0tNOvucScrhsBF652X-3NY8lz3OFCQE"
cloud.mail.ru	TXT	Text record	"mailru-domain: Gkp7pryGoej6Xk95"
cloud.mail.ru	TXT	Text record	"yandex-verification: 9da7425618add55c"
cloud.mail.ru	TXT	Text record	"google-site-verification=BpixfVoYE2DLJUINgQ3SJL_Ca2-9h1uas3jg1JU3Aqo"
cloud.mail.ru	TXT	Text record	"mailru-verification: 8b1866f73fd6f22d"
cloud.mail.ru	TXT	Text record	"yandex-verification: d145911edabf8abb"
cloud.mail.ru	TXT	Text record	"yandex-verification: 22efc120d1e768bf"
cloud.mail.ru	SPF	Sender Policy Framework	"v=spf1 include:_spf.mail.ru include:astrum-nival" ".com -all"

Risk description

An initial step for an attacker aiming to learn about an organization involves conducting searches on its domain names to uncover DNS records associated with the organization. This strategy aims to amass comprehensive insights into the target domain, enabling the attacker to outline the organization's external digital landscape. This gathered intelligence may subsequently serve as a foundation for launching attacks, including those based on social engineering techniques. DNS records pointing to services or servers that are no longer in use can provide an attacker with an easy entry point into the network.

Recommendation

We recommend reviewing all DNS records associated with the domain and identifying and removing unused or obsolete records.